Warning: require_once(auth_functions.php): Failed to open stream: No such file or directory in E:\Program_Files\wamp64\www\ppt_old\old_files\secure_stream1.php on line 2

Fatal error: Uncaught Error: Failed opening required 'auth_functions.php' (include_path='.;C:\php\pear') in E:\Program_Files\wamp64\www\ppt_old\old_files\secure_stream1.php:2 Stack trace: #0 {main} thrown in E:\Program_Files\wamp64\www\ppt_old\old_files\secure_stream1.php on line 2